Toyota Sienna Service Manual: On-vehicle inspection

Toyota Sienna Service Manual / Engine / 2Gr-fe fuel / Fuel system / On-vehicle inspection

1. INSPECT FOR FUEL PUMP OPERATION AND FUEL LEAK

(a) Check fuel pump operation.

(1) Connect the intelligent tester to the DLC3.

(2) Turn the engine switch on (IG) and push the intelligent tester main switch on.

NOTICE: Do not start the engine.

(3) Select the following menu items: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / FUEL PUMP / SPD.

(4) Check for pressure in the fuel inlet tube from the fuel line. Check that sound of fuel flowing in the fuel tank can be heard. If no sound can be heard, check the integration relay, fuel pump, ECM and wiring connector.

(b) Check for fuel leaks (*1).

(1) Check that there are no fuel leaks anywhere on the system after performing maintenance. If there is a fuel leak, repair or replace parts as necessary.

(d) Disconnect the intelligent tester from the DLC3.

2. CHECK FUEL PRESSURE

(a) Discharge the fuel system pressure (See page FU- 1).

(b) Using a voltmeter, measure the battery voltage.

Standard voltage: 11 to 14 V

(d) Disconnect the fuel hose from the fuel main tube (See page FU-1).

CHECK FUEL PRESSURE

(e) Install SST (pressure gauge) using SST and a fuel tube connector as shown in the illustration.

SST 09268-31011 (09268-41500, 90467-13001, 95336-08070), 09268-45014 (09268-41200, 09268-41220, 09268-41250)

(f) Wipe up any gasoline.

(g) Connect the cable to the negative (-) battery terminal.

(h) Connect the intelligent tester to the DLC3.

(i) Select the following menu items: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / FUEL PUMP / SPD.

(j) Measure the fuel pressure.

Fuel pressure: 304 to 343 kPa (3.1 to 3.5 kgf*cm2, 44.1 to 49.7 psi)

If the fuel pressure is greater than the standard value, replace the fuel pressure regulator.
If the fuel pressure is less than the standard value, check the fuel hoses and connections, fuel pump, fuel filter and fuel pressure regulator.

(k) Disconnect the intelligent tester from the DLC3.

(l) Start the engine.

(m) Measure the fuel pressure at idle.

Fuel pressure: 304 to 343 kPa (3.1 to 3.5 kgf*cm2, 44.1 to 49.7 psi)

(n) Stop the engine.

(o) Check that the fuel pressure remains as specified for 5 minutes after the engine stops.

Fuel pressure: 147 kPa (1.5 kgf*cm2, 21 psi) or more

If the fuel pressure is not as specified, check the fuel pump, pressure regulator and/or fuel injectors.

(p) After checking the fuel pressure, disconnect the cable from the negative (-) battery terminal and carefully remove the SST to prevent gasoline from splashing.

(q) Reconnect the fuel tube to the main fuel tube (fuel tube connector).

(r) Install the No. 1 fuel pipe clamp to the fuel tube connector.

(s) Check for fuel leaks (*1).

Precaution

1. PRECAUTION (a) Before inspecting and repairing the fuel system, disconnect the cable from the negative (-) battery terminal. (b) Do not smoke or work near fire when handling the fuel system. ...

Fuel injector

...

Other materials:

Diagnostic trouble code chart
HINT: If a trouble code is displayed during the DTC check, check the circuit indicated by the DTC. For details of each code, turn to the page for the respective DTC Code. in the DTC chart. Inspect the fuse and relay before investigating the trouble areas as shown in the table below. ...

Installation
1. INSTALL REAR AXLE HUB & BEARING ASSEMBLY LH (a) Install the hub & Bearing assembly LH with the 4 bolts. Torque: 56 N*m (571 kgf*cm, 41 ft.*lbf) 2. INSPECT BEARING BACKLASH (See page AH-16) 3. INSPECT AXLE HUB DEVIATION (See page AH-16) 4. CONNECT SKID CONTROL SENSOR WIRE (a) Co ...

Safety Connect LED light Indicators
When the engine switch is turned to the “ON” position (vehicles without a smart key system) or IGNITION ON mode (vehicles with a smart key system), the red indicator light comes on for 2 seconds then turns off. Afterward, the green indicator light comes on, indicating that the service is act ...